On the Cover:
The Sun has set on Mars, but twilight lingers, casting a reddish glow on the Martian surface (left) and the top of Viking Lander 1
(right). Red dust in the atmosphere scatters the sunlight, producing the color of the sunset. The coloured rings in the sky are not real; they are artifacts of severe contrast enhancement produced by computer processing of the camera's transmitted image.
Volume 3, number 5
Sundown for Viking
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3 The Last Viking: Long-time science journalist Jonathan Eberhart gives a poetic summary of the Viking mission to Mars.
7 Seeing Through Sand: Charles Elachi and Ronald Blom use radar imaging to peer through desert sands.
10 Venus Revealed: Brown University planetary geophysics graduate students James B. Garvin, Maria T. Zuber, and Paul Helfenstein take us on a photographic tour of the Venusian surface with Venera images.
13 Society Notes The Hungarian connection.
14 News & Reviews "The Great Extinction" and other mysteries.
15 World Watch Venus Radar Mapper, Galileo, Cassini, and future Soviet mission plans.
An asteroid or comet headed for Earth is the only large-scale natural disaster we can prevent. Working together to fund our Shoemaker NEO Grants for astronomers, we can help save the world.
Pretty pictures and